A comparative study of the radiation resistance of four optically transparent polyimides

Devasahayam, S., Hill, D. J. T. and Connell, J. W. (2001) A comparative study of the radiation resistance of four optically transparent polyimides. Radiation Physics And Chemistry, 62 1: 189-194.


Author Devasahayam, S.
Hill, D. J. T.
Connell, J. W.
Title A comparative study of the radiation resistance of four optically transparent polyimides
Journal name Radiation Physics And Chemistry   Check publisher's open access policy
Publication date 2001
Sub-type Article
DOI 10.1016/S0969-806X(01)00437-6
Volume number 62
Issue number 1
ISSN 0969-806X
Start page 189
End page 194
Total pages 6
Place of publication Oxford, UK
Publisher Pergamon
Collection year 2001
Language eng
Subject C1
250599 Macromolecular Chemistry not elsewhere classified
780103 Chemical sciences
Abstract A comparative study of the high energy radiation resistance to formation of radicals in two pairs of polymers is reported. In one pair of polymers the phenyl groups containing the imide rings are separated by an ether linkage and in the other pair they are separated by an hexafluoroisopropylidine group. Two of the polymers contained aromatic amine units linked through an ether linkage and the other two polymers contained a trifluoromethyl biphenyl diamine. The polymers were shown to retain a high level of transparency in the visible region following radiolysis to doses as high as 8 Gy. ESR studies of the resistance to radical formation on radiolysis. at 77 K revealed that the polymers containing ether linkages were more stable than their fluorinated analogues, but all were less stable than Kapton (R). (C) 2001 Elsevier Science Ltd. All rights reserved.
Keyword Chemistry, Physical
Nuclear Science & Technology
Physics, Atomic, Molecular & Chemical
Transparent Polyimides
Radiation Sensitivity
Uv Spectroscopy
Esr Spectroscopy
Radical Yields
Q-Index Code C1

Document type: Journal Article
Sub-type: Article
Collection: School of Chemistry and Molecular Biosciences
 
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Created: Tue, 14 Aug 2007, 15:28:42 EST